18 
JOURNAL OF MYCOLOGY. 
[Vol. Ill, No. 2, 
conidia cylindrical, 40—60 (mostly 40—50) x 3—4 p, yellowish-hyaline, 
nucleate (becoming septate?). This differs from C. Diospyri, Thm., in 
its epipliyllous growth on definite spots and in its much shorter, subhya¬ 
line, mostly entire hyphse. Mr. L. also sends a Cercospora on leaves of 
Viburunum plicatum on blackish, subindefinite, subconfluent spots (4—1 
cm.), often becoming grayish in the center, with very short, epipliyllous, 
fasciculate, subhyaline hyphse on a distinct, tubercular base and long 
(50—70 x 24 p), yellowish-hyaline, nucleate conidia. The specimens agree 
well with Peck’s C. varia, except in the epipliyllous hyphse. From an 
examination of Saccardo’s specimen of C. tinea in Mycotheca Veneta, we 
are inclined to refer the Louisiana specimens to that species, though we 
could not well make out the hyphse in the M. V. specimen, on which, 
however, the hyphse are epipliyllous and in sparsely-scattered tufts 
exactly us in the specimens sent by Mr. Langlois. 
Cercospora Mimuli, E. & E.—On leaves of Mimulus alatus , Colum¬ 
bia, Mo. Prof. S. M. Tracy. Spots amphigenous, round, whitish (1—2 
millim. diam.). with a purple border; hyphse amphigenous, short 
(15—25 /-'-), continuous, pale brown, comparatively thick (4—5 p), entire or 
slightly toothed above, tufted on a minute tubercular base, tufts thickly 
scattered over the spots ; conidia hyaline, sparingly septate or oftener 
continuous and nucleate, 40—60 x 24—3 P. 
Cercospora Vite^e, E. & E.—On living leaves of Vitea agnus castus , 
in a garden, Lafayette, La., September, 1886. Langlois, No. 727. Spots 
amphigenous, cinereous, brown above wfith a narrow, darker margin, 
paler and more indefinite below, irregular or suborbicular, 2—4 millim. 
diam ; tufts epipliyllous, minute, scattered, black, consisting of short 
(10—15 x 3 /■*), brownish hyphse more or less bent and irregular above and 
arising from a small tubercular base; conidia subcylindrical, the longer 
ones attenuated above, smoky hyaline, 30—45 x 24 P, becoming about 
3-septate. On the same spots are small, erumpent, pale, membranaceous 
perithecia ( Pyrenochcete minor , E. & E.) about 75 p in diam., with a large 
apical opening surrounded by a circle of black, slender bristles, 75—100 p 
long ; sporules ovate-elliptical, hyaline, continuous, 24—3 x U—14 P. 
Cercospora Erythrin^e, E. & E.—On living leaves of Erytlirina 
crista aalli , Lafayette, La., Septemoer, 1886. Langlois, No. 728. Spots 
amphigenous, small (1 millim.), white, with a rusty-red border, rusty red 
below without any white center ; hyphse epipliyllous, fasciculate, on a 
tubercular base, stout, pale brown, geniculate and crooked above, 30—50 
x 4—5 p ; conidia mostly about 35 x 24 P, nucleate, yellowish-hyaline, 
much attenuated above; some, however, are shorter and thicker (25—30 
x 3 p) and 2—3-septate. On the same spots is a Phyllosticta with oblong- 
elliptical or ovate-elliptical sporules, 6—8 x 24—3 p (P. Australis, SpegV). 
Cercospora Leonotidis, Cke.—On living leaves of Leonotis nepetce- 
folia , Point a’ la Ilaclie, La., September, 1886. Langlois, No. 768. Spots 
amphigenous, pale, round, subindefinite, 2—3 millim. diam., often convex 
below ; hyphse amphigenous (mostly hypophyllous), very short (10—15 /•*), 
on a tubercular base, nearly entire or olivaceous, brown ; conidia nearly 
hyaline, linear-obclavate, about 3-septate, 35—45 x 24—3L 
